Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
060010excellentexcellent11excellent
05009excellentexcellent11excellent
04009excellentexcellent11excellent
03006excellentexcellent11excellent
02005excellentexcellent11excellent
01005excellentexcellent11excellent
00005excellentexcellent11excellent
23006excellentexcellent11excellent
22007excellentexcellent21excellent
210013excellentexcellent21excellent
200011excellentexcellent11excellent
19008excellentexcellent11excellent
18008excellentexcellent21excellent
17008excellentexcellent11excellent
160011excellentexcellent11excellent
150013excellentexcellent11excellent
140013excellentexcellent21excellent
130016excellentexcellent21excellent
120020excellentexcellent21excellent
110011excellentexcellent11excellent
10002excellentexcellent11excellent
09004excellentexcellent11excellent
08003excellentexcellent11excellent
07004excellentexcellent11excellent